Extent of linkage disequilibrium, defined by the R² measure, for single nucleotide polymorphisms around (A) rs2046932, (B) rs1491923, (C) rs11835105and (D) rs11176013 in the vicinity of <i>LRRK2</i> in five populations: HapMap Japanese (JPT – black circles/line); HapMap Chinese (CHB- red circles/line); SGVP Chinese (CHS- green circles/line); SGVP Malay (MAS- orange circles/line); SGVP Indian (INS- purple circles/line).

<p>In the upper panel, the vertical dashed line indicates the position of the focal SNP rs2046932/rs1491923/rs11835105/rs11176013, and each vertical dotted line connects the circles corresponding to the same SNP for the different populations. The lower panel shows the same information, except that each line displays the linkage disequilibrium around the focal SNP for a specific population.